Notes on fresh-water fishes from Mexico and Central America.

v.7:no.5(1907)

Late Devonian fresh-water fishes from the western United States / Robert H. Denison --

v.11:no.5(1951)

Diversity and stability of fishes (Teleostei) in a temporary river of the Brazilian semiarid region

The effects of hydrological disturbances by flooding and drought on the diversity and stability in a temporary river fish community in the Brazilian semiarid region were analyzed over the 1996 hydrological cycle. Twelve collections of fishes were made during the wet and dry phases, and 789 individuals of 16 species were collected. Diversity was measured using Simpson's Index (S) and community stability was analyzed by the variation in abundance using Kendall's W concordance test. Fish diversity in the Taperoá river was subjected to hydrological disturbances by flooding and drought. During the wet phase the diversity was higher (S = 0.855) than during the dry phase (S = 0.771). The community was considered stable during the whole annual hydrological cycle (W = 0.418 p < 0.001), but a higher stability in the community was found during the dry phase. During the dry phase the number of dominant species was smaller than during the wet phase.

Systematics and zoogeography of the land and fresh-water mollusca of the New Hebrides.

Fieldiana Zoology v.43 contents

Some remarkable shells of a South American fresh-water mussel [by] Fritz Haas

v.31:no.3(1945)

New Caledonian land and fresh-water snails; an annotated check list.

v.41:no.3(1961)

The fresh-water fishes of North Borneo [by] Robert F. Inger and Chin Phui Kong.

v.45(1962)

A new catalogue of the fresh-water fishes of Panama, by Samuel F. Hildebrand.

v.22:no.4(1938)

Records of large fresh-water mussels.

v.24:no.24(1941)

Systematics of the land and fresh-water mollusca of the New Hebrides, [by] Alan Solem.

v.43:no.1(1959)

Check list of North American water-mites / Rodger D. Mitchell.

v.35:no.3(1954)

Water depth selection during foraging and efficiency in prey capture by the egrets Casmerodius albus and Egretta thula (Aves, Ardeidae) in an urban lagoon in Rio de Janeiro State, Brazil

This study aimed to evaluate the water depth selection during foraging, the efficiency in prey capture, and the food items captured by Casmerodius albus (Linnaeus, 1758) and Egretta thula (Molina, 1782). The work was conducted at an urban lagoon, Lagoa Rodrigo de Freitas, Rio de Janeiro. Four transects were made each month (two in the morning and two in the afternoon) for six months. When the birds were detected foraging, the water depth and the types of prey captured were recorded. There was no significant relationship between the foraging efficiencies of the two species. However, they differed in relation to the water depth when foraging, and also in the food items captured. Casmerodius albus captured mainly fishes while Egretta thula captured mainly invertebrates. The results suggest that the differences in water depth when foraging and the food items captured allow a differential use of the food resources available by C. albus and E. thula at Lagoa Rodrigo de Freitas.

Zoogeography of the land and fresh-water mollusca of the New Hebrides, [by] Alan Solem.

v.43:no.2(1959)

Marine and fresh-water mollusks of the Solomon Islands / Alan Solem.

v.34:no.22(1953)

Land and fresh-water mollusks from Peru.

v.31:no.28(1949)